The answer is A It uses wedge-shaped characters. This was called cuneiform. It was written of thick clay tablets. Answer B is incorrect because hieroglyphics were made the Egyptians in around 3,400 ti 3,200 BCE. Answer C is wrong because not many citizens didn't have an education. School exactly were existent, called edubas, but they only how do things such as farming and feeding animals, and bricklaying. It also only for boys. Answer D is incorrect as well because the Indus Valley used pictographs, which were pictures to describe full names and objects.
